From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E51DC282DA for ; Thu, 18 Apr 2019 02:34:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DE192217F9 for ; Thu, 18 Apr 2019 02:34:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="zfbSUqr5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387913AbfDRCeQ (ORCPT ); Wed, 17 Apr 2019 22:34:16 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:36973 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732737AbfDRCeQ (ORCPT ); Wed, 17 Apr 2019 22:34:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=NgGdMsaQO+r4woM+IrT274HzeRsYOjCT1dIGHDTcD/Q=; b=zfbSUqr5+85+IZ9y6V5mB+2IdF Hxuyu8t8S7SjmAOizjIsxPa7qvZ0OHrkWFpiGZXo6nFFvjHfq5aMu57auNjQXx5l4u/BojSrDwrIz G/skXgM6NclC5A9pG1rqMjxRlfDiJtTZ2I4EaRydjU4ZRthWhgf2JcgFSovnYPbz6kSs=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1hGwpi-0004Sg-8x; Thu, 18 Apr 2019 04:31:26 +0200 From: Andrew Lunn To: David Miller Cc: netdev , Florian Fainelli , Vivien Didelot , Andrew Lunn Subject: [PATCH net-next 08/15] dsa: Keep link list of tag drivers Date: Thu, 18 Apr 2019 04:31:13 +0200 Message-Id: <20190418023120.17067-9-andrew@lunn.ch> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190418023120.17067-1-andrew@lunn.ch> References: <20190418023120.17067-1-andrew@lunn.ch> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Let the tag drivers register themselves with the DSA core, keeping them in a linked list. Signed-off-by: Andrew Lunn --- include/net/dsa.h | 2 ++ net/dsa/dsa.c | 35 ++++++++++++++++++++++++++++++++++- 2 files changed, 36 insertions(+), 1 deletion(-) diff --git a/include/net/dsa.h b/include/net/dsa.h index 551c6c0d7870..46774e812f1b 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -65,6 +65,8 @@ struct dsa_switch; struct dsa_device_ops { const char *name; enum dsa_tag_protocol proto; + struct list_head list; + struct module *owner; struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt); diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index a49e230b6247..861fe1441a7d 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -27,6 +27,9 @@ #include "dsa_priv.h" +static LIST_HEAD(dsa_tag_drivers_list); +static DEFINE_MUTEX(dsa_tag_drivers_lock); + static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -76,16 +79,46 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = { [DSA_TAG_PROTO_NONE] = &none_ops, }; +static int dsa_tag_driver_register(struct dsa_device_ops *ops, + struct module *owner) +{ + ops->owner = owner; + + mutex_lock(&dsa_tag_drivers_lock); + list_add_tail(&ops->list, &dsa_tag_drivers_list); + mutex_unlock(&dsa_tag_drivers_lock); + return 0; +} + int dsa_tag_drivers_register(struct dsa_device_ops *ops[], unsigned int count, struct module *owner) { - return 0; + int err, i; + + for (i = 0; i < count; i++) { + err = dsa_tag_driver_register(ops[i], owner); + if (err) + break; + } + + return err; +} + +static void dsa_tag_driver_unregister(struct dsa_device_ops *ops) +{ + mutex_lock(&dsa_tag_drivers_lock); + list_del(&ops->list); + mutex_unlock(&dsa_tag_drivers_lock); } EXPORT_SYMBOL_GPL(dsa_tag_drivers_register); void dsa_tag_drivers_unregister(struct dsa_device_ops *ops[], unsigned int count) { + int i; + + for (i = 0; i < count; i++) + dsa_tag_driver_unregister(ops[i]); } EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister); -- 2.20.1